This is how they ended up:
I used some blue striping tape to make stripes on one nail on each hand. Then I thought, wouldn't it look better if they were actually stripes. So I used Revlons Chroma Chameleon in Aquamarine which is almost the exact same colour as the tape and filled in alternate stripes. I then painted one more finger on each hand in this colour, so it was a little less random!
I actually really like this. Nice and simple, without being just plain boring. I really like these two colours together too.
The Silk polish is quite thin and pale. I had to use 3 coats to get a nice even coverage and it is still a really light colour. It has a nice sheen to it though.